Submission #1147186

#	Time	Username	Problem	Language	Result	Execution time	Memory
1147186		Nelt	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	59 ms	11332 KiB

triusis

#include <bits/stdc++.h>
#define ll long long
#define endl "\n"
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

void solve()
{
    ll n, x;
    cin >> n >> x;
    ll a[n + 1];
    for (ll i = 1; i <= n; i++) cin >> a[i], a[i] -= i * x;
    multiset<ll> s;
    for (ll i = 1; i <= n; i++)
    {
        if (a[i] > 0) continue;
        auto it = s.lower_bound(a[i]);
        if (it != s.begin()) 
        {
            it--;
            s.erase(it);
            s.insert(a[i]);
        }
        else s.insert(a[i]);
    }
    cout << n - s.size() << endl;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll t = 1;
    // precomp();
    // cin >> t;
    for (ll cs = 1; cs <= t; cs++)
        solve();
    // cerr << "\nTime elapsed: " << clock() * 1000.0 / CLOCKS_PER_SEC << " ms\n";
}

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37